Who is the greatest athlete of all time in each sport? It’s a question that has sparked countless arguments among sports fans, with everyone having their own opinion on what truly defines greatness.
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Is it the number of championships won? Individual records? Natural talent? Or the ability to dominate at the highest level for an extraordinary period?
For us, greatness is about more than an athlete’s peak. Longevity, consistency, quality of opposition and individual achievements all play a significant role in determining who deserves to be called the Greatest of All Time (GOAT).
From Lionel Messi’s extraordinary football career to Jacques Kallis’ remarkable all-round brilliance and Michael Jordan’s dominance in the NBA, we’ve selected our GOATs across 15 of the world’s biggest sports.
Some choices might seem obvious. Others will undoubtedly cause controversy.
1. Football: Lionel Messi
When discussing football’s greatest player, the debate inevitably comes down to Lionel Messi, Cristiano Ronaldo, Pelé and Diego Maradona.
However, Messi’s combination of goalscoring, creativity, individual brilliance and sustained excellence makes him our selection.
The Argentine has won eight Ballon d’Or awards, four UEFA Champions League titles, two Copa América titles and the 2022 FIFA World Cup, completing one of the most decorated careers in football history.
What separates Messi is that he wasn’t simply an extraordinary goalscorer. He was also one of the greatest playmakers the sport has ever witnessed, capable of controlling matches through his passing, dribbling and vision.
Cristiano Ronaldo’s longevity and goalscoring achievements make him an exceptional challenger, but Messi’s all-round attacking influence gives him the edge.
2. Cricket: Jacques Kallis
Sir Donald Bradman’s extraordinary Test batting average of 99.94 is often used to justify his status as cricket’s greatest player.
However, cricket consists of three fundamental disciplines: batting, bowling and fielding. When considering all three, Jacques Kallis has arguably the greatest individual career in the sport’s history.
Across 166 Tests, the South African scored 13,289 runs at an average of 55.37, claimed 292 wickets and took 200 catches.
Across all international formats, Kallis accumulated 25,534 runs, 577 wickets and 338 catches.
Those are the achievements of an all-time great specialist batter combined with a highly accomplished seam bowler and outstanding slip fielder.
Bradman was statistically the most dominant Test batter in history, but his career consisted of 52 Tests. Kallis maintained elite standards across 166 Tests and an 18-year international career while contributing significantly in all three disciplines.
For sustained all-round excellence, Kallis is our cricket GOAT.
3. Basketball: Michael Jordan
The Michael Jordan versus LeBron James debate is arguably basketball’s equivalent of Messi versus Cristiano Ronaldo.
LeBron’s longevity, versatility and extraordinary career statistics give him a compelling argument, but Jordan’s dominance during his peak remains difficult to overlook.
The Chicago Bulls legend won six NBA championships, six Finals MVP awards, five regular-season MVP awards and ten scoring titles.
Jordan was also an exceptional defender, winning the NBA Defensive Player of the Year award in 1988 and earning nine All-Defensive First Team selections.
His combination of offensive brilliance, defensive excellence and championship success makes him our greatest basketball player of all time.
4. Tennis: Novak Djokovic
Roger Federer brought elegance to tennis, Rafael Nadal dominated clay courts like nobody before him, while Serena Williams established herself as arguably the greatest female tennis player in history.
Williams’ achievements are extraordinary, with 23 Grand Slam singles titles, 319 weeks as world No. 1 and four Olympic gold medals. Her dominance, longevity and influence on women’s tennis make her a genuine contender for the overall tennis GOAT.
However, Novak Djokovic gets our vote, largely because of the extraordinary competition he has faced throughout his career.
The Serbian has won 24 Grand Slam singles titles, spent a record 428 weeks as world No. 1 and completed the career Golden Slam by winning Olympic singles gold in Paris in 2024.
What makes Djokovic’s achievements particularly impressive is that he competed against Roger Federer and Rafael Nadal during their prime years, developing fierce rivalries with two of the greatest players in history. Despite that competition, he finished with winning head-to-head records against both legends.
Even as he approached 40, Djokovic continued competing at the highest level against a new generation of superstars, including Carlos Alcaraz and Jannik Sinner, demonstrating remarkable longevity and adaptability.
While Serena’s achievements make this an incredibly difficult decision, Djokovic’s ability to dominate across all surfaces, overcome two generational rivals and remain competitive against the next generation gives him the edge.
For sustained excellence against some of the greatest opposition tennis has ever produced, Djokovic is our GOAT.
5. Boxing: Muhammad Ali
Boxing has produced extraordinary champions, including Sugar Ray Robinson, Floyd Mayweather Jr., Manny Pacquiao and Oleksandr Usyk.
However, Muhammad Ali’s achievements against some of the greatest heavyweights in history make him our selection.
Ali finished his professional career with 56 victories and five defeats, becoming a three-time lineal heavyweight champion.
His victories over Sonny Liston, George Foreman, Joe Frazier and Ken Norton demonstrated his ability to overcome elite opposition across different stages of his career.
What made Ali particularly remarkable was his adaptability. The young Ali relied on speed and movement, while the older champion developed exceptional tactical intelligence and resilience.
Sugar Ray Robinson arguably has the stronger pound-for-pound claim, while Usyk’s undefeated record and achievements across cruiserweight and heavyweight are extraordinary.
Nevertheless, Ali’s combination of championship longevity, quality of opposition and historical significance earns him our vote.
6. Formula 1: Lewis Hamilton
Michael Schumacher, Ayrton Senna and Max Verstappen all have legitimate claims to Formula 1 greatness, but Lewis Hamilton’s extraordinary career gives him the edge.
The British driver has won seven Formula 1 World Championships, equaling Schumacher’s record, while holding the all-time records for Grand Prix victories and pole positions.
Hamilton’s success has spanned multiple regulation eras, with his ability to adapt to different cars, competitors and technical challenges demonstrating remarkable longevity.
Although Kimi Antonelli recently became Formula 1’s youngest-ever world champion at just 20, Hamilton’s sustained excellence across nearly two decades remains the benchmark.
7. Rugby Union: Dan Carter
Richie McCaw, Jonah Lomu and Bryan Habana all deserve consideration, but Dan Carter is our choice as rugby union’s greatest player.
The legendary All Blacks fly-half earned 112 Test caps, scored a world-record 1,598 international points and won two Rugby World Cups in 2011 and 2015.
Carter was the complete fly-half, combining exceptional tactical kicking, playmaking, goal-kicking accuracy and attacking intelligence.
His performance against the British & Irish Lions in Wellington in 2005, when he scored 33 points, remains one of rugby’s greatest individual displays.
While McCaw’s leadership and defensive influence were extraordinary, Carter’s ability to dictate matches and consistently deliver at the highest level makes him our rugby GOAT.
8. Mixed Martial Arts: Islam Makhachev
Jon Jones has long been considered MMA’s greatest fighter, but Islam Makhachev’s remarkable achievements have strengthened his claim to the title.
The Dagestani superstar has captured UFC championships at lightweight and welterweight, establishing himself as one of the most technically complete fighters in the sport’s history.
Makhachev has defeated elite opponents including Charles Oliveira, Alexander Volkanovski, Dustin Poirier, Jack Della Maddalena and Ian Machado Garry.
His victory over Della Maddalena was particularly impressive, as he moved up in weight to defeat the reigning welterweight champion before successfully defending his title against Ian Machado Garry.
That victory also extended his UFC winning streak to a record 17 consecutive fights.
Jones’ championship resume remains extraordinary, but his documented anti-doping violations complicate his legacy. Makhachev’s strength of opposition, sustained dominance and achievements across two divisions make him our MMA GOAT.
9. Athletics: Usain Bolt
Few athletes have dominated their discipline as convincingly as Usain Bolt.
The Jamaican sprinting legend won eight Olympic gold medals and eleven World Championship gold medals, while setting world records of 9.58 seconds in the 100 metres and 19.19 seconds in the 200 metres.
What makes Bolt’s achievements particularly remarkable is that both world records have stood since 2009.
He also completed the Olympic 100m and 200m double at three consecutive Games, winning both events in Beijing, London and Rio de Janeiro.
For sustained sprinting dominance, Bolt stands alone.
10. Swimming: Michael Phelps
Michael Phelps’ Olympic achievements are almost impossible to comprehend.
The American won 28 Olympic medals, including 23 golds, making him the most decorated Olympian in history.
His versatility was equally extraordinary, with victories across butterfly, freestyle, individual medley and relay events.
Phelps won eight gold medals at the 2008 Beijing Olympics alone, breaking Mark Spitz’s previous record of seven at a single Games.
His longevity, versatility and overwhelming dominance make him our swimming GOAT.
11. Ice Hockey: Wayne Gretzky
Nicknamed “The Great One”, Wayne Gretzky possesses arguably the most impressive statistical résumé in ice hockey history.
The Canadian legend recorded 894 NHL goals and 1,963 assists, finishing with a staggering 2,857 career points.
Perhaps his most remarkable achievement is that Gretzky accumulated more assists than any other player has total career points.
He also won four Stanley Cups and nine Hart Memorial Trophies as the NHL’s most valuable player.
Gretzky’s combination of individual dominance, longevity and championship success makes him one of the clearest GOAT selections on this list.
12. American Football: Tom Brady
Tom Brady’s extraordinary career is built on sustained excellence and an almost unmatched ability to win championships.
The legendary quarterback won seven Super Bowls, five Super Bowl MVP awards and three NFL regular-season MVP awards.
He also holds the NFL records for career passing yards and passing touchdowns.
Brady’s longevity was remarkable, remaining a championship-winning quarterback into his forties and claiming his final Super Bowl with the Tampa Bay Buccaneers at 43.
Patrick Mahomes may eventually challenge his legacy, but Brady’s completed career remains the standard.
13. Baseball: Babe Ruth
Babe Ruth transformed baseball and remains one of the most influential athletes in American sporting history.
The New York Yankees legend finished his Major League Baseball career with 714 home runs, a .342 batting average and seven World Series championships.
However, what makes Ruth particularly fascinating is that he was also an outstanding pitcher earlier in his career, helping the Boston Red Sox win championships before becoming baseball’s most feared hitter.
His combination of elite pitching ability, historic batting achievements and lasting influence makes him our baseball GOAT.
14. Golf: Tiger Woods
Jack Nicklaus holds the record for the most men’s major championships with 18, but Tiger Woods’ extraordinary peak and sustained dominance give him our vote.
Woods has won 15 major championships and 82 PGA Tour events, tying Sam Snead’s all-time PGA Tour victories record.
He also spent a record 683 weeks as the world’s No. 1-ranked golfer.
Between 2000 and 2001, Woods achieved the remarkable feat of holding all four major championship titles simultaneously, an accomplishment famously known as the Tiger Slam.
His comeback victory at the 2019 Masters further cemented his legacy as one of sport’s greatest competitors.
15. MotoGP: Valentino Rossi
Marc Márquez and Giacomo Agostini both have exceptional claims to motorcycle racing greatness, but Valentino Rossi’s longevity and influence give him the edge.
The Italian legend won nine motorcycle Grand Prix world championships across three classes, including seven titles in the premier class.
He also recorded 115 Grand Prix victories and remained competitive across an extraordinary career spanning more than two decades.
Rossi’s success with different manufacturers, adaptability across racing eras and enormous influence on the sport make him our MotoGP GOAT.
Márquez’s achievements make this a particularly close debate, but Rossi’s sustained excellence earns him our selection.
Final Thoughts: What Really Makes An Athlete The GOAT?
The greatest-of-all-time debate will never have a universally accepted answer.
Some fans prioritise individual brilliance, while others place greater emphasis on championships, records or the ability to perform under pressure.
However, the strongest GOAT candidates combine extraordinary talent with longevity, consistency and sustained dominance against elite opposition.
That is why athletes such as Messi, Kallis, Djokovic, Hamilton and Phelps feature on our list. Their achievements weren’t limited to a single remarkable season or brief period of dominance. They consistently performed at the highest level throughout extraordinary careers.
Of course, there will always be disagreements. Cristiano Ronaldo or Messi? Jordan or LeBron? Ali or Mayweather? Jon Jones or Islam Makhachev?
And that’s precisely what makes these debates so entertaining.
Lwanele is the Content Manager for BetJets News and has dedicated six years to creating top-notch sports betting content for major bookmakers, establishing himself as a trusted source for betting advice. As the resident tipster for TAB’s popular TV show Racing Today, he specialises in cricket, MMA, and soccer betting. Known for his keen analysis and practical tips, Lwanele provides BetJets readers with the tools they need to approach betting with confidence and strategy.
